... I feel just plain incompetent at this point.
Wicked frustrating. This was supposed to be a quick "post online for the dopamine hit" effort but I don't feel much closer to getting both video tracks in sync with the combined audio than I did last night.
I'm at the "really need to delete all of the files I've generated and start over with the original clips" stage. It's *got* to be some issue at the intersection of key frames and frame rates, combined with my personal lack of knowledge about how video/audio containers work.
But, now I need to go be social and focus on things that are not this for the next day and a half. 😒
I may try to at least post an audio mix later.
@mayor lovely!
@mayor The "pro" way to do it would be to have a sync click at the start of each video. Use the clicks to align the videos.
@Unatributed I did this by doing an audible count-in for each video - I got the two parts in sync (apart from a bit of tempo drift here and there in my own playing) early on, the issues have all been with the video getting out of sync with the audio during processing.
Nothing to post yet (going to try to actually mix the quality audio after all this trouble and) but I sorted out the sync problem:
trick is to re-encode the original video with the ffv1 codec which is lossless (I think? It makes for huge files anyway) and allows for much more precise seeking. Then mash them together, and re-compress the output